sails.js mvc framework learning

目的：加快开发速度，总结使用方法：
menu list:

• custom controller
• custom 模块使用
• custom model
• custom middleware
  
• custom
• service

## 关于启动 ##：

config/connection -- db connection
入口: app.js
config/bootstrap - 启动入口app.js 后的
config/policies 配置
bin/*.json

## 关于DIY ##：

config/router
路由与对应的controller处理:
用命令行 & controller 变化
wade-mac:fin_server_invest mac$ sails generate controller mail sendmaillog
info: Created a new controller ("mail") at api/controllers/MailController.js!
路由总汇总：config/routes.js
想往常一样加：, 'GET /make/a/mail':"MailController.sendmaillog"

模块的使用： －－ 与以前一样

 /**
 * MailController
 *
 * @description :: Server-side logic for managing mails
 * @help        :: See http://links.sailsjs.org/docs/controllers
 */

module.exports = {
    


  /**
   * `MailController.sendmaillog()`
   */
  sendmaillog: function (req, res) {
    var log4js = require('log4js');
    var logger = log4js.getLogger();
    logger.debug("Some debug messages");

    return res.json({
      todo: 'sendmaillog() is not implemented yet!'
    });
  }
};

model command ：
https://www.digitalocean.com/community/tutorials/how-to-create-an-node-js-app-using-sails-js-on-an-ubuntu-vps

$sails generate model user name:string email:string password:string
$sails generate controller user index show edit delete

middleware：
https://gist.github.com/mikermcneil/6255295
look at config/http.js

module.exports.http = {

  /****************************************************************************
  *                                                                           *
  * Express middleware to use for every Sails request. To add custom          *
  * middleware to the mix, add a function to the middleware config object and *
  * add its key to the "order" array. The $custom key is reserved for         *
  * backwards-compatibility with Sails v0.9.x apps that use the               *
  * `customMiddleware` config option.                                         *
  *                                                                           *
  ****************************************************************************/

  middleware: {

  /***************************************************************************
  *                                                                          *
  * The order in which middleware should be run for HTTP request. (the Sails *
  * router is invoked by the "router" middleware below.)                     *
  *                                                                          *
  ***************************************************************************/

    order: [
       'startRequestTimer',
       'cookieParser',
       'session',
       'myRequestLogger',
       'bodyParser',
       'handleBodyParserError',
       'compress',
       'methodOverride',
       'poweredBy',
       '$custom',
       'router',
       'www',
       'favicon',
       '404',
       '500'
    ],

  /****************************************************************************
  *                                                                           *
  * Example custom middleware; logs each request to the console.              *
  *                                                                           *
  ****************************************************************************/

    myRequestLogger: function (req, res, next) {
         console.log("Requested :: ", req.method, req.url);
         return next();
    },


  /***************************************************************************
  *                                                                          *
  * The body parser that will handle incoming multipart HTTP requests. By    *
  * default as of v0.10, Sails uses                                          *
  * [skipper](http://github.com/balderdashy/skipper). See                    *
  * http://www.senchalabs.org/connect/multipart.html for other options.      *
  *                                                                          *
  ***************************************************************************/

    bodyParser: require('skipper')

  },

  /***************************************************************************
  *                                                                          *
  * The number of seconds to cache flat files on disk being served by        *
  * Express static middleware (by default, these files are in `.tmp/public`) *
  *                                                                          *
  * The HTTP static cache is only active in a 'production' environment,      *
  * since that's the only time Express will cache flat-files.                *
  *                                                                          *
  ***************************************************************************/

  cache: 31557600000
};

上面的是所有的路由都经过的middleware
疑问：控制某个路由/a 经过middleware: [a, b, c ] , 某个路由/b 经过middleware: [a, c ]

---

一些文件夹

• service 本项目单独的业务逻辑
• lib 存放一些共用的lib
• data 存放常用配置、数据

CRUD

• CRUD -- model
  
• CRUD -- 尽量使用 native
  • 速度快
  • 适合复杂操作
• CRUD -- 坑
  • 并发：使用findandmodify & update(upsert) & findorcreate

  //findandmodify
  Order.native(function (err, collection) {
  collection.findAndModify(query, null, {$set: update_data}, {'new': false}, function (err, newResult, detail) {

  //update upsert
  User_account_cashflow.native(function(err, colletion){
  colletion.update(query, {$set: cashflow },{upsert:true, multi:false} , function(err, effectNum, result){
  callback(err, cashflow, result.updatedExisting);
  });
  });

---